Can i file for divorce in florida if i got married in new york?

If you have lived here for 6 months, you can file for divorce. Since you don't know where he is, you will have to publish the divorce for 4 weeks in  a newspaper that is in the last known address for him. It is called service by publication.  After the publication has ended, the newspaper will give you verification that you would then file with the Court. The Court can enter a default and set a final hearing. This process is in my opinion much harder for an unrepresented party to complete. I highly suggest hiring an attorney to handle for you. Best of Luck.